US PATENT SUBCLASS 279 / 46.9
.~.~ With means to exclude contaminants; e.g., seal, shield

Current as of: June, 1999
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279 /   HD   CHUCKS OR SOCKETS

9.1  DF  SOCKET TYPE {27}
46.1  DF  .~ Spring biased jaws {7}
46.9.~.~ With means to exclude contaminants; e.g., seal, shield

DEFINITION

Classification: 279/46.9

With means to exclude contaminants; e.g., seal, shield:

(under subclass 46.1) A device having a gasket or other barrier means which prevents undesired material from entering the chuck body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

43.9, for a split resilient socket with means to exclude contaminants.

157, for an accessory or component of a chuck or a socket which accessory or component includes protection means such as a cover or a seal.